I work as a school aide for a 10-year-old boy with autism and these behaviors sound like what he does as well. However, I (as his aide) DO care about them and we work on these things. I absolutely don't let him steal people's food, and he gets in big trouble if he does things that are sexually inappropriate (the other day, he showed his privates to everyone in the boy's bathroom, because he thought it would be funny to see their reactions... he got in big trouble for that and had to go talk to the principal, and he lost video game privileges at home for two days, and got big lectures from his parents).
The trying to grab the football is probably his attempt to try to play with you, not to try to annoy you. I would bet that it's just because he wants to play football too, and he doesn't know how to appropriately ask if he can play too. In that case I would ask him "Hey did you want to play with us?"
If he says yes, then you can say "Cool, you stand right over here and I'll throw the ball to you, then you throw the ball to (friend's name)." Then help him through the process step-by-step if necessary, because he might not understand the game. For most of the problems you describe, you can't do much.
However, you *can* report the grabbing girls' butts, because technically that is sexual assault, and that should never be tolerated, even within special education. The boy obviously does this because he doesn't understand that the behavior is unacceptable, but you are right that they should still at least be putting a lot of effort into blocking this behavior if it occurs, as well as teaching him that it's not ok. Before you report, however, I would inform the teacher (or the special education department -- or better, both) that you find this behavior completely unacceptable and that you would like to see a good attempt on the part of his teachers to curb this particular behavior.
Inform them that if you don't see any evidence that they are trying to stop this behavior, then you will report the student to administration for sexual assault. That should get their rear ends in gear about the problem. If you don't feel comfortable approaching them verbally about this, then you can write them an anonymous note.
If he's stealing food or assaulting other students, then those people should report it to the office. Every student has the right to feel safe and have their rights respected in school.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.